Sandstone arch, large Arizona Sierra Feldspar when exposed to UV light

when exposed to UV light this area of the quartz glows as if more hyalite is trapped inside the point

If pyrite is fool's gold

but it can range into green or a bold contrast of black

I suspect these are not hand carved

I’d love to learn more

Sandstone arch, large Arizona Sierra Feldspar when exposed to UV lightLocale: Arizona Approx size and weight variable by piece; dimensions at end These sandstone arches mimic the grand arches of Utahs national parks. They are made of Arizona Sierra sandstone sourced from central Arizona. Sandstone is a sedimentary rock composed of sand compacted and cemented together through geological processes, giving it a grainy texture. Sandstone with distinct layering like this is often called picture stone because the layers